| Type: | neighbourhood |
| Province: | Mersin |
| District: | Erdemli |
| Hacıalanı | |
| Population Total: | 181 |
| Population As Of: | 2022 |
| Coordinates: | 36.8333°N 45°W |
| Elevation M: | 1550 |
| Postal Code: | 33730 |
| Area Code: | 0324 |
Hacıalanı is a neighbourhood in the municipality and district of Erdemli, Mersin Province, Turkey.[1] Its population is 181 (2022).[2] The village is situated in the peneplane area to the south of the Toros Mountains. The distance to Erdemli is and the distance to Mersin is .
Because the village is actually a yayla (summer resort) the population sharply increases during the summer to up to 3000.[3] The artificial lake Karakız is to the east of the village. The touristic potential of the village with the Roman ruins as well as cedar forests is promising. But at the present tourism plays no important role in village economy. Its main economic activity is farming, with tomato, cherry, peach, apple and beans being the main crops. Animal breeding is another activity.[3]